|
End Mills
|
printer friendly version
|
Type of Drill
|
|
(BALL NOSE)
|
 |
Single End 2-Flute
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Single End 3-Flute
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Single End 4-Flute
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Single End 2-Flute
|
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HOW TO USE THIS CHART:
 Match Your Workpiece Material
 Identify End Mill Options
 Determine Surface Feet Per Minute (SFM)
 See Catalog Page For Sizes
 Determine Feed Per Tooth (see below)
Note: Contact Precision Twist Drill
Technical Services for applications not listed.
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|
 Material Group
|
BHN
Hardness
|
Normal
Chip Form
|
Material Type
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|
 Surface Feet Per Minute
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1. Steel
|
|
|
1.1
|
Magnetic Soft Steel, Leaded Steels
|
 120
|
Extra Long
|
1116, 1118, 1212
|
10L18, 12L13, 12L14
|
|
290
|
|
325
|
|
360
|
|
400
|
|
360
|
|
400
|
|
450
|
|
500
|
|
260
|
|
290
|
|
325
|
|
360
|
|
325
|
|
360
|
|
400
|
|
450
|
|
|
1.2
|
Structural Steel, Case
Carburizing Steel
|
200
|
Medium/Long
|
30, 55
|
70, 100
|
|
225
|
|
250
|
|
270
|
|
300
|
|
325
|
|
375
|
|
415
|
|
450
|
|
200
|
|
225
|
|
250
|
|
270
|
|
300
|
|
340
|
|
370
|
|
400
|
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1.3
|
Plain Carbon Steel Low, Medium Carbon
|
250
|
Long
|
1008, 1010, 1020
|
1040, 1055, 1524
|
|
225
|
|
250
|
|
270
|
|
300
|
|
325
|
|
375
|
|
415
|
|
450
|
|
200
|
|
225
|
|
250
|
|
270
|
|
300
|
|
340
|
|
370
|
|
400
|
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|
1.4
|
Alloyed Steel, Medium Carbon,
Tool Steel, Wrought
|
250
|
Long
|
4140, 4150, 4340
|
A2, 01, D2
|
|
180
|
|
200
|
|
230
|
|
260
|
|
300
|
|
340
|
|
380
|
|
425
|
|
160
|
|
180
|
|
200
|
|
240
|
|
275
|
|
315
|
|
350
|
|
390
|
|
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1.5
|
Alloyed Steel, Hardened and
Tempered Steel, Tool Steel
|
 250
350
|
Long
|
01, L6, D3, A2, 4140
|
4150, 4340, 8620, 8630
|
|
160
|
|
180
|
|
200
|
|
230
|
|
250
|
|
300
|
|
360
|
|
400
|
|
145
|
|
160
|
|
180
|
|
200
|
|
225
|
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270
|
|
325
|
|
360
|
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1.6
|
Alloyed Steel, Hardened and
Tempered Steel, Tool Steel
|
350
400
|
Long
|
01, L6 D3, A2, 4140
|
4150, 4340, 8620, 8630
|
|
150
|
|
160
|
|
180
|
|
200
|
|
200
|
|
240
|
|
280
|
|
330
|
|
150
|
|
180
|
|
210
|
|
250
|
|
180
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|
220
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250
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300
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2. Stainless Steel
|
|
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2.1
|
Free Machining Stainless Steel
|
250
|
Medium
|
303, 416
|
430F, 440F
|
|
200
|
|
250
|
|
300
|
|
325
|
|
240
|
|
275
|
|
325
|
|
350
|
|
180
|
|
210
|
|
250
|
|
300
|
|
200
|
|
240
|
|
225
|
|
325
|
|
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2.2
|
Austenitic
|
250
|
Long
|
304, 310, 316
|
321, Nitronic 50
|
|
140
|
|
160
|
|
190
|
|
225
|
|
170
|
|
200
|
|
240
|
|
275
|
|
110
|
|
130
|
|
150
|
|
180
|
|
140
|
|
160
|
|
190
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|
225
|
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2.3
|
Ferritic + Austenitic, Ferritic,
Martensitic
|
300
|
Long
|
409, 430, 436
|
304, 440A, 440C
|
|
110
|
|
130
|
|
150
|
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175
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|
130
|
|
150
|
|
175
|
|
200
|
|
100
|
|
120
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|
140
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170
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|
150
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180
|
|
200
|
|
240
|
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2.4
|
Precipitation Hardened
|
300
|
Long
|
15-5PH
|
Custom 450 17-4PH
|
|
90
|
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110
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125
|
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150
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100
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120
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150
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180
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|
75
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90
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110
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125
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90
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110
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|
125
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150
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3. Cast Iron
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3.1
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Soft Gray Cast, Ferritic
|
150
|
Extra Short
|
ASTM A48 Class 20, 40
|
G3000
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|
375
|
|
--
|
|
490
|
|
550
|
|
450
|
|
--
|
|
650
|
|
700
|
|
300
|
|
--
|
|
425
|
|
500
|
|
360
|
|
--
|
|
500
|
|
600
|
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3.2
|
Soft Gray Cast, Pearlitic
|
> 150
260
|
Extra Short
|
ASTM A48 Class 40, 60
|
G3500, G4000
|
|
320
|
|
--
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|
450
|
|
525
|
|
380
|
|
--
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|
540
|
|
650
|
|
250
|
|
--
|
|
350
|
|
400
|
|
300
|
|
--
|
|
430
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|
510
|
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3.3
|
Nodular Graphite,
Malleable Cast Iron
|
> 150
250
|
Medium/Short
|
ASTM A220 Grade 40010
SAE J158 Grade M4504
|
ASTM A602 Grade M4504
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|
320
|
|
--
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450
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|
525
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380
|
|
--
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|
540
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|
650
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|
250
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|
--
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|
350
|
|
400
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|
300
|
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--
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450
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510
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3.4
|
Nodular Graphite,
Malleable Cast Iron
|
> 250
320
|
Medium/Short
|
ASTM A220 Grade 80002
ASTM A602 Grade M8501
|
ASTM A220 Grade 90001
|
|
250
|
|
--
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330
|
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375
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|
280
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|
--
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|
400
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430
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|
200
|
|
--
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|
300
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|
340
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|
230
|
|
--
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|
340
|
|
400
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4. Titanium
|
|
|
4.1
|
Titanium, Unalloyed
|
200
|
Extra Long
|
Commercially Pure 99.0
|
|
|
--
|
|
--
|
|
200
|
|
230
|
|
--
|
|
--
|
|
230
|
|
260
|
|
--
|
|
--
|
|
180
|
|
200
|
|
--
|
|
--
|
|
200
|
|
230
|
|
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4.2
|
Titanium Alloy, Cast
|
270
|
Medium/Short
|
ASTM B367
|
Grades C-1 - C-7A
|
|
--
|
|
--
|
|
180
|
|
200
|
|
--
|
|
--
|
|
200
|
|
230
|
|
--
|
|
--
|
|
165
|
|
180
|
|
--
|
|
--
|
|
190
|
|
210
|
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|
4.3
|
Titanium Alloys
|
> 270
350
|
Medium/Short
|
T16AL4V
T16AL6V2SN
|
|
|
--
|
|
--
|
|
--
|
|
190
|
|
--
|
|
--
|
|
--
|
|
200
|
|
--
|
|
--
|
|
--
|
|
175
|
|
--
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|
--
|
|
--
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|
180
|
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5. Nickel
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5.1
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Nickel, Unalloyed
|
150
|
Extra Long
|
Nickel 200, Nickel 230
|
|
|
--
|
|
185
|
|
200
|
|
230
|
|
--
|
|
210
|
|
230
|
|
265
|
|
150
|
|
--
|
|
180
|
|
200
|
|
170
|
|
--
|
|
210
|
|
235
|
|
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5.2
|
Nickel Alloys
|
> 150
240
|
Long
|
Nimonic 75
Monel 400
|
Hastelloy C
Inconel 600
|
|
--
|
|
--
|
|
--
|
|
160
|
|
--
|
|
--
|
|
--
|
|
200
|
|
--
|
|
--
|
|
--
|
|
140
|
|
--
|
|
--
|
|
--
|
|
180
|
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|
5.3
|
Nickel Alloys
|
>240
400
|
Long
|
Nimonic 80
Inconel 718
|
Inconel 825
|
|
--
|
|
--
|
|
--
|
|
100
|
|
--
|
|
--
|
|
--
|
|
130
|
|
--
|
|
--
|
|
--
|
|
85
|
|
--
|
|
--
|
|
--
|
|
115
|
|
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6. Copper
|
|
|
6.1
|
Copper Alloys, Wrought
|
100Rb
|
Extra Long
|
101, 130, 170
|
630, 725
|
|
650
|
|
--
|
|
750
|
|
--
|
|
680
|
|
--
|
|
780
|
|
--
|
|
585
|
|
--
|
|
675
|
|
--
|
|
615
|
|
--
|
|
700
|
|
--
|
|
|
6.2
|
Brass, Bronze
|
200Rh
|
Medium/Short
|
ASTM B30
|
|
|
500
|
|
--
|
|
600
|
|
--
|
|
575
|
|
--
|
|
630
|
|
--
|
|
450
|
|
--
|
|
520
|
|
--
|
|
520
|
|
--
|
|
570
|
|
--
|
|
|
6.3
|
Brass
|
200Rh
|
Long
|
ASTM B367
|
|
|
500
|
|
--
|
|
600
|
|
--
|
|
575
|
|
--
|
|
630
|
|
--
|
|
450
|
|
--
|
|
520
|
|
--
|
|
520
|
|
--
|
|
570
|
|
--
|
|
|
6.4
|
High Strength Bronze
|
470Rf
|
Short
|
Phosphor Bronze
|
|
|
125
|
|
--
|
|
190
|
|
--
|
|
145
|
|
--
|
|
200
|
|
--
|
|
110
|
|
--
|
|
175
|
|
--
|
|
130
|
|
--
|
|
180
|
|
--
|
|
|
7. Aluminum
|
|
|
7.1
|
Al, MG, Unalloyed
|
100kg
|
Extra Long
|
EC, 1060
|
1100
|
|
1500
|
|
--
|
|
1725
|
|
--
|
|
1600
|
|
--
|
|
1845
|
|
--
|
|
1350
|
|
--
|
|
1590
|
|
--
|
|
1450
|
|
--
|
|
1650
|
|
--
|
|
|
7.2
|
Al Alloys, Si>5%
|
150kg
|
Medium
|
380, 520.0, 520.2
|
2024, 6061
|
|
1500
|
|
--
|
|
1725
|
|
--
|
|
1600
|
|
--
|
|
1845
|
|
--
|
|
1350
|
|
--
|
|
1590
|
|
--
|
|
1450
|
|
--
|
|
1650
|
|
--
|
|
|
7.3
|
Al Alloys, Si>5% <10% |
120kg
|
Medium
|
319, 333
|
356
|
|
650
|
|
--
|
|
710
|
|
--
|
|
710
|
|
--
|
|
790
|
|
--
|
|
585
|
|
--
|
|
640
|
|
--
|
|
640
|
|
--
|
|
710
|
|
--
|
|
|
7.4
|
Al, Alloys, Si>10%,
Wisker Reinforced
Al-Alloys, MG Alloys
|
120kg
|
Short
|
390, 392, 4032
|
222.1, A332.0
|
|
400
|
|
--
|
|
525
|
|
--
|
|
480
|
|
--
|
|
550
|
|
--
|
|
360
|
|
--
|
|
475
|
|
--
|
|
430
|
|
--
|
|
500
|
|
--
|
|
|
DATA FEED RATES (DFR) CHART
|
|
End Mills
|
|
(BALL NOSE)
|
HOW TO USE THIS CHART:
- Application Example:
- Peripheral milling plain carbon steel (1020) with a 2-flute 1/4” dia. E3302
uncoated end mill; radial depth of cut .25 x Ø, axial depth of cut 1.5 x Ø.
|
- To Find Cutting Feed Rate (FT)
- Select the appropriate SFM from the Operating Guides above.
- Reference closest dia. for the cutting application
- Select the corresponding type of cut
and # of flutes of the cutter - Select the corresponding Ft range
- To calculate RPM: SFM/D x 3.82 (225/.25 x 3.82)
- To calculate IPM: IPR x RPM (.0060 x 344)
-
(.0023 x 2 x 3438)
|
1/4”
1.5 x Ø, .25x Ø
2-flute
.0014-.0023
3438
9.6
15.8
|
End Mill Cutting Data Feed Rates Chart
|
|
Type of Cut/Depth of Cut
|
|
|
|
2-Flutes
|
2 or 3 Flutes
|
2 or 3 Flutes
|
3 or 4 Flutes
|
3 or 4 Flutes
|
3 or 4 Flutes
|
4-Flutes
|
2, 3, or 4-Flutes
|
|
Dia.
|
Feed Per Tooth (Ft)
|
|
1/16
|
--
|
.0002-.0004
|
.0001-.0003
|
.0004-.0006
|
.0001-.0003
|
--
|
--
|
.0003-.0005
|
|
1/8
|
--
|
.0005-.0008
|
.0003-.0005
|
.0008-.0010
|
.0002-.0004
|
--
|
--
|
.0004-.0008
|
|
3/16
|
--
|
.0007-.0011
|
.0006-.0010
|
.0009-.0015
|
.0005-.0009
|
.0003-.0005
|
.0011-.0020
|
.0007-.0013
|
|
1/4
|
.0014-.0023
|
.0009-.0015
|
.0007-.0012
|
.0013-.0030
|
.0008-.0015
|
.0006-.0010
|
.0017-.0021
|
.0009-.0015
|
|
5/16
|
.0017-.0028
|
.0011-.0018
|
.0008-.0013
|
.0020-.0035
|
.0011-.0018
|
.0008-.0013
|
.0020-.0023
|
.0010-.0018
|
|
3/8
|
.0020-.0033
|
.0015-.0020
|
.0009-.0015
|
.0024-.0044
|
.0014-.0022
|
.0009-.0015
|
.0022-.0026
|
.0014-.0023
|
|
1/2
|
.0028-.0047
|
.0017-.0028
|
.0013-.0022
|
.0030-.0046
|
.0020-.0033
|
.0015-.0025
|
.0027-.0033
|
.0019-.0032
|
|
5/8
|
.0035-.0058
|
.0020-.0032
|
.0017-.0027
|
.0035-.0057
|
.0026-.0043
|
.0021-.0035
|
.0031-.0040
|
.0023-.0038
|
|
3/4
|
.0042-.0070
|
.0023-.0038
|
.0019-.0031
|
.0043-.0065
|
.0032-.0053
|
.0026-.0043
|
.0036-.0045
|
.0026-.0044
|
|
1
|
.0046-.0080
|
.0032-.0053
|
.0026-.0043
|
.0050-.0086
|
.0040-.0062
|
.0033-.0056
|
.0040-.0050
|
.0033-.0056
|
|
Note: Remember these values are only
a starting point. They may require
adjustment based upon conditions or
individual requirements.
|
|
|
APPLICATION MATERIAL GROUPS (AMG) CHART
